Seiko 3023-5MZ (Maxell TC920S with special connector)

Type: Battery / Capacitor. Voltage: 1.5 V.

Diameter: 9.5 mm. Height: 2.05 mm.

Price: £15.75 each. £15.50 each if you buy two or more.

Also known as: Seiko 3029-113 and Seiko 3029-111 and 3023-5MY.

Replaces: Seiko 3023-5MZ, Maxell TC920S with connector, bracket and insulator

Comments:
These Seiko 3023-5MZ devices were originally not batteries at all, but miniature capacitors. More recently however, Seiko has upgraded their specification and replaced them with minute rechargeable batteries.

This is a genuine SEIKO KINETIC MOVEMENT capacitor / battery for use in Seiko Kinetic watches.

Consisting of a Maxell TC 920 S with special connector plates, this Seiko part 3023-5MZ is a replacement capacitor for the following Seiko watch movement calibres:

Seiko 5M22, 5M22A
Seiko 5M23, 5M23A
Seiko 5M25, 5M25A
Seiko 5M42, 5M42A
Seiko 5M43, 5M43A
Seiko 5M45, 5M45A
Seiko 5M47, 5M47A
Seiko 5M54, 5M54A
Seiko 5M62, 5M62A
Seiko 5M63, 5M63A
Seiko 5M65, 5M65A
Seiko 5M82, 5M82A
Seiko 5M83, 5M83A
Seiko 5M84, 5M84A
Seiko 5M85, 5M85A

The calibre is typically inscribed on the back of your watch. For example a watch might have........

220905 - 5M22 - OACO

inscribed on the back. The calibre, 5M22, is highlighted.

These 3023-5MZ TC920S with tag are almost exclusively used in Seiko Kenetic electronic watches.

You may wish to look at the excellent web page "How to Fix the Seiko Arctura kinetic watch" by Alex Scott. Also the Norwegian web page "Urreparasjon" The bottom section of the page shows the Seiko Kinetic (Caliber 5M42).

The Maxell TC920S is a button-type titanium carbon lithium rechargeable Li-ion battery that uses lithium titanium oxide as the positive material, carbon as the negative material, and organic electrolyte.

If you don't find the movement calibre you are looking for, contact us by email. Use the 'Contact Us' link in the left hand frame.